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Complete the sentences about the ukwith must, mustn't, should or shouldn't.in the uk you must be over 17 to drive a car. buy a licence for your television.you say 'please' and 'thank you' as much as youcan.you walk or sit on the grass in some parks. give your seat to old people on a crowded busor train.you take a present if someone invites you to theirhouse. open an umbrella inside the house.you call your teacher by his or her first name.